Refuse truck



Dec. 13, 1938.

J. GCODMAN Re. 20,947

REFUSE TRUCK Original Filed Sept. 26, 1931 3 Sheets-Sheei 1 gl jli 1 61J 44 56 47mvzm'0R BY Jasepfi Gmarrzm I A ORNEYI Dec. 13, 1938. I 1GOQDMAN Re. 20,947

REFUSE TRUCK Original Filed Sept. 26, 1931 I 3 Sheets-Sheet 2 IN VENT RJade 7 /2 8 Arrow? J. GOODMAN Dec. 13, was.

REFUSE TRUCK 3 Sheets-Sheet 3 Original Filed Sept. 26, 1931 M Reis luedDec. 13, 1938 aarusa ration Joseph Goodman, New York, N. 1., assignor toAutomatic Truck Loader Corporation, New York, N. Y., a corporation ofDelaware Original No; 1,915,927, June 2'1, 1933, Serial No. 565,279,September 26, 1931. Application for reissue March 9, 1938, Serial No.195,619

15 Claims. (CL-21H- This invention relates to new and usefulimprovements in a refuse truck.

The invention has for an object the construction of a refuse truck whichis characterized by j a body hinged at its back 'upon a chassis so as tobe capable of tilting upwards to discharge its load, and the provisionof a loading conveyor extending up the back of the truck and within thetop of the body and arranged to automatically move as the truck istilted to allow the discharge mentioned.

As another object of this invention it is proposed to construct theconveyor of two sections, the rear section of which is pivotallysupported so as to be capable of swinging away from the back of thetruck body.

As. another object of this invention it is proe posed to provide apivotal frame engaging beneath the movable section of the conveyor andin connection with a cable anchored upon the chassis in a manner so asto complete pivoting of the conveyor section as the truck body istilted.

As a still further object, it is proposed to provide a novel means fordriving said conveyor operable only when the body is in its horizontalpo- "sition.

' A still further object of this invention is the construction of -adevice of the. class mentioned which is of simple durable construction,dependable in use and eflicient in action and which can be manufacturedand sold at a reasonable cost.

' For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand .claims in which the various novel features of the invention aremore particularly set forth.

- In .the accompanying drawings forming a material part of thisdisclosure:-

Fig. l is' a perspective view of a refuse truck constructed according tothis invention.

Fig. 2 is a perspective view of the truck shown as Fig. 8 is afragmentary enlarged detailed view accompanying drawings, and to theappended of the conveyor sprocket and conveyor shown in Fig. 7.

Fig. 9 is a fragmentary elevational view of the lower'portion of theconveyor showing the intake spout in a strained or opened position.

Fig. 10 is a fragmentary detailed view of a portion of Fig. 2 butshowing the truck body inclined.

Fig. 11 is a fragmentary plan view of the chassis of the truck.

Fig. 12 is a sectional view taken on the line l2--l2 of Fig. 10.

Fig. 13 is a fragmentary enlarged detailed view of a portion of Fig. 11'showing in particular the drive for the conveyor.

Fig. 14 is an elevational view looking in the direction of the line l4llof Fig. 11.

Fig. 15 is a fragmentary sectional view taken on the line il-li .of Fig.4. p

Fig. '16 is a fragmentary sectional view taken on the line "-46 of Il'lg. 15.

The refuse truck, according to this invention, is composed of a chassisill supporting a body II.

'The chassis is of standard construction except for 'window i9 at theside of the body permits inspection of the contents thereof from theexterior.

- Rungs 20 upon the sides of the body allow for climbing so that it isconvenient to look through the windows l9. I

A means is provided for tilting the body upwards from its normalposition, shown in Figs. 1 and 2, to a rest position as indicated inFig. 10. This means comprises a control lever 2i within the driver'scabin l and pivotally supported at the bottom end 22, this control leveris in connection with a rod 23 working a shift 24 supported on-thechassis. The details of the shift 2| are not shown since itsconstruction is generally known to those skilled in the art and it formsno part of this invention. The shift 24 controls a transmission systemII which includes a sprocket drive 28', a shaft The. reduction unit 28and terminates in a drive pinion 29. This drive pinion is in mesh withan arcuate rack 30 attached upon the bottom of the body.

transmission to move.

chains 33 extended over wheels 34 and carrying conveyor blades 35. Oneof the sprocket wheels 34 is mounted upon an adjustable journal 36 sothat the tension of the conveyor may be adjusted properly. The section32 of the conveyor is mounted within a casing 31 pivotally supported atthe top at the point 38 upon the rear 7 of the body H. Flexible material33 is extended between the top of the casing 31 and .the body so as toallow pivoting of the conveyor section. At the lower end, the casing 31is provided with a moveable bottom 40 forming an intake spout,

or boot, which is hingcdly supported at one side 4| and resiliently heldclosed at the other side to prevent'jamming of the conveyor by a boltand spring construction, 42. In Fig. 9 the section at is shown pivotedto an opened position with the spring compressed. A portion of thecasing 31 is opened, indicated in Figs. 3 and 4 by reference numeral 43,so that the conveyor may be properly loaded. In the event that too muchmaterial collects within the hinged portion it, instead of the conveyorjamming, the portion ill will merely move under its resilient holdingmeans. When, the refuse truck is used on snow, blades 44 are mountedupon the bottom of the conveyor for the purpose of breaking up the snowso that it may be easily lifted by the conveyor.

A frame 45 is pivotally mounted intermediately at 86 upon the body II.This frame comprises side members 41 jointed by a roller 43 which isextended beneath the conveyor casing 31. The top ends of the sidemembers 41 are connected with cables 49 extended over pulleys 50 mountedupon the bottom of the body II and attached at their bottom ends to thechassis I3 as indicated at 5|.

A sprocket 54 is fixed upon a rotatively mounted shaft on the body IIwhich carries a gear 55. When the body II is in a lowered position, thegear 55 meshes with a gear 55 slidable on a squared shaft 51 rotativelymounted in the side piece of'chassis Ill (Fig. 13). The squared shaft 51connected with a transmission system 58 terminates in the shift 24. Acontrol rod 59 is adapted to operate the shift so as to cause the Thecontrol rod 59 connects with a hand lever 80 in the cabin I5 of thevehicle. A casing 5| (Fig. 2) houses the chain 53 connecting thesprocket wheels 52 and 54. The gear 56 is provided with a collar 82 fromwhich a handle 63 (Figs. 2, 10 and 14) depends so that the gear may bemoved along the squared shaft 51 to be in mesh or out of mesh with thegear 55'.

The modification shown in Fig. 6 discloses means for rigidly holding theconveyor casing 31 at various distances from the frame 45. This isaccomplished by an arcuate rack 54 pivotally supported at one end 65upon the frame 45 and in mesh with a pinion 36 rotative upon the cas ing31. A spring 61 acting between the rack and the casing 31 urges the rackinto engagement with the gear 56. mounted upon the casing 37 and engagesthe gear 56 so as to hold it in fixed positions. A bumper 69 is arrangedupon the side of the casing 35 and acts against the frame 55 to 61 511-A spring urged pawl 5| is ionany shocks which may result by the conveyorcasing 31 engaging against the frame. To change the relative positionsof the frame 45 to the conveyor casing 31, the pawl 68 must first bedisengaged from the gear 66 which latter element must be turned to causethe rack 64 to move thereby changing the relative positions between theframe and the casing, and then the pawl 88 must be re-engaged with thegear 66 so as to hold the parts in desired separated positions.

In loading the truck the operation of the parts may be traced byassuming them to be in the position as shown in full lines in Fig. 1.Refuse may be dumped into the inlet spout 40 and be fed up by the blades35 of the conveyor. It is requisite that the conveyor work in ananticlockwise direction so that the blades scoop up material from withinthe bottom of the casing section 31, lift this material up and drop thematerial over into the top of the truck body I I. As the material pilesup, the blades 35will also serve to spread the material out towards thefront and sides of the truck body.

In the unloading operation the body II is raised to the tilted position,as shown for example in Fig. 10, the conveyor casing 31 will beautomatically moved away from the back of the .body so that refusewithin the body can be diswards relatively to the body which causeslifting of the back portion of the conveyor, indicated by 32, and itscasing 31.

While I have shown and described the preferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Havingihus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:-

1. A refuse truck, comprising a chassis, a body hinged at its back andupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined posi-. tion, a conveyorwithin the top of the body and having a section extending from the backof the body and down along the back, a pivotal frame on said bodybeneath the back section of said conveyor and slidably' supporting theback section of the conveyor, means for driving said conveyor when saidbody is in a lowered position, and means for changing the inclination ofsaid frame to lift the conveyor section automatically as the body israised.

2. A refuse truck, comprising a chassis, a body hinged at its back andupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe' top of the body land having a section extending from the back ofthebody and down along the back, a pivotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means for changingthe inclination of said frame to lift the conveyor section automaticallyas the body is raised, said means for raising the body being controlledfrom 20,947 a hand lever within the driver's cabin. of said conveyorwhen said body is in a lowered position, and means for changing theinclination of said frame to lift the conveyor section automatically asthe body is raised, said conveyor comprising endless chains extendedover sprockets and supporting blades. v

4. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the body and having a section'extending'from the back of thebody and down along the back, a privotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means for changingthe inclina' tion of said frame to lift the conveyor sectionautomatically as the body is raised, the back of said conveyor sectionbeing within a conveyor casing pivotally mounted at its top end upon theback of said body.

5. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,-

means for raising said body to 'an inclined position, a conveyor withinthe top of the body and having a section extending from the back of thebody and down along the back, a pivotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means forchangingthe inclination of said frame to lift the conveyor section automaticallyas the body is raised, the back of said conveyor section being within aconveyor casing pivotally mounted at its top end upori the back of saidbody, flexible material being engaged over the back of the body and thetop of said conveyor casing to close the opening between these parts.

6. A refuse truck, comprising a chassis, a body hinged at its back endupon saidchassis and having an inclined back side with an opening, meansfor raising said body to an inclined position, a conveyor within the topof the body and having a section extending from the back of the body anddown along the back, a pivotal frame on said body slidably supporting.the

back section of .said conveyor, means for driving said conveyor whensaid body is in a lowered position,- and means for changing theinclination of said frame to lift the conveyor section automatically asthe body is raised, said pivotal side members supporting a transverseroller engaged beneath the conveyor section.

7. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the body and having a section extending from the back of thebody and down along the back, a pivotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means for changingthe inclination of said frame to lift the conveyor section auto-'matically as the body is raised, said pivotal frame being pivotedintermediate of its end upon the back of said body.

8. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the body and having a section extending from the back of thebody and down along the back, a pivotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means for changingthe inclination of said frame to lift the conveyor section automaticallyas the body is raised, said means for driving the conveyor comprises adrive system on said body and terminating in a-gear engageable with agear from a drive system on said chassis.

9. A refuse truck, comprising a chassis, a body hinged at its back. endupon said chassis and. having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the bodyand having a section extending from the back of thebody and down along the back, 'a pivotal frame on said body slidablysupporting the back section of said conveyor, means for driving saidconveyor when said body is in a lowered position, and means for changingthe inclination of said frame to lift the conveyor section automaticallyas the body is raised, said means for driving the conveyor comprises adrive system on said body and terminating in a gear engageable with agear from a drive system on said chassis, the drive system on saidchassis including a transmission terminating in acontrol leverwithin'the cabin of saidtruck. I

10. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the body and having a section extending from the back of thebody and down along the back, a pivotal frame on said body slidablysupporting the back section of said conveyor, means for drivin saidconveyor when said body is in a lowered position, and means for changingthe inclination of said frame to lift the conveyor section automaticallyas the body is raised, comprising acable attached upon the top end ofsaid frame and extending over pulleys upon said body and attached uponsaid chassis.

11. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and having an inclined back side with an opening,means for raising said body to an inclined position, a conveyor withinthe top of the body and having a section extending from'the back theback, a pivotal of the body and down along frame on said body slidablysupporting the back means for driving said conveyorwhen said body is ina lowered position, and means for changing the inclination of said frameto lift the conveyor section automatically as the body is raised, thebottom of the conveyor section being formed with a resilient at-' tachedmember. I

12. A refuse truck, comprising a chassis, a body hinged at its back endupon said chassis and '75 'means for raising said body 4 having aninclined back side with an opening.

to an inclined position, a conveyor within the top of the body andhaving a section extending from the back of the body and down along theback, a pivotal frame on said body siidably supporting the back sectionof said conveyor, means for driving said conveyor when said body, is ina lowered position, means for changing the inclination of said frame tolift the conveyor section automatically as the body is raised, and meansfor rigidly holding the back conveyor section at various distances fromsaid pivotal frame.

13. A refuse truck, comprising a truck body having an open rear end andadapted to tilt to dump from the rear end, a hinged cover, extending'over said open rear end for closing the same, a loading conveyormounted on said cover, said loading conveyor continuing over the top ofsaid truck body for loading same, the rear portion oi said conveyorbeing pivoted relative to the top portion, and means for pivoting saidrear conveyor .section together with the nged cover, away from the rearopen end of the truck body, and at the lower end at the rear of saidtruck the loading conveyor is provided with aloading boot,

having a section resiliently supported to be capable of moving out ofposition in the event oi overloading of the conveyor, a plurality ofconveying blades or buckets projecting from said conveyor, means formoving the conveyor blades so that they scoop the refuse in said bootupward at the side adjacent the said hinged door, then dumping therefuse from the top of the refuse truck at its rear end first and as therefuse fills up the rear end ofethe truck body, the moving conveyingblades or buckets act as scrapers to level the loaded refuse" below thetop of the truck body and thereafter to the excess refuse toward thefront adjacent the levelled surface.

14. In a. refuse truck, the combination with a box forming a truck body,a conveyor extending over the top of the body and depending downwardlyon the outside of the body comprising means for picking up and carryingrefuse from a point atits lower end and depositing it into the 'top ofthe body, of a casing enclosing the depending portion of the conveyorcomprising a movable bottom end portion forming a hopper and means forresiliently supporting said end portion for movement relatively to theconveyor to relieve tension on the latter occurring in the vicinity ofits pick-up.

15; In a refuse truck, the combination with a box forming a truck bodyhaving an open side and a door for clomng the opening, a conveyorextending over the top of the body and downwardly on the outer side ofthe door, means for moving the conveyor to transport material upwardlyon the side adjacent the door and deposit it into the body contiguous tothe upper edge of the door, of a boot forming a movable hopper enclosingthe lower end of the conveyor and devices for yieldingly holding thehopper adiacent the conveyor and allowing it to move to relieve pressurecreated by the engagement of refuse by the conveyor in its movementthrough the-hopper.

JOSEPH GOODMAN.

